Fantastic topic!
PG: Rondo
SG: Paul George
SF: James
PF: Love
C: Noah
SG: I see a lot of people saying OJ Mayo and James Harden, but I am a big NO for both. They're players who need the ball in their hands to be more than useful. If you have Rondo at point, the ball is in Rondo's hands. Rondo is basically useless off the ball. Neither Mayo nor Harden are great off-the-ball guards. George is useful off-the-ball, and it'd be nice to pair Rondo with a young SG who can help offensively and defensively.
SF: I loathe writing Bron's name, but teaming him with Rondo would be as exciting a match-up of players as possible in the NBA. Forget about Kobe or Durant or Wade. Rondo would find Bron in places Bron didn't even know he could be found. Those two alone may average 100ppg.
PF: I know Love plays a lot of C, but in a reverse KG, I'm planting him at PF. Not only is he a beast on the boards and a potential alley-oop every time down the court, but he spaces the floor with his three-point shooting, and Rondo would find him every time. I agree with people who put Nowitzki, but Love is younger and rebounds at a much higher clip.
C: I want more of a traditional C with a defensive background. Someone who doesn't need the ball on the block to score, but is smart enough and good enough with his hands to find openings, catch Rondo's passes, and finish at the rim. He doesn't need to be 7-ft because he has beats like Love and Bron down in the post with him. Al Horford is a close second with David Lee coming in third.